<div class="modal-dialog">
  <div class="modal-content">
    <div class="modal-header">
      <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
      <h4 class="modal-title" id="modalTitle">标题</h4>
    </div>
    <div class="modal-body">
      <h1>Hello World!</h1>
    </div>
    <div class="modal-footer">
      <button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
      <button type="button" class="btn btn-primary">保存</button>
    </div>
  </div><!-- /.modal-content -->
</div><!-- /.modal-dialog -->
